Ventrolaminidae
| Ventrolaminidae Temporal range: Bajocian - Berriasian | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| (unranked): | SAR |
| (unranked): | |
| Phylum: | |
| Subphylum: | |
| Class: | |
| Order: | |
| Family: | Ventrolaminidae Weynschenk, 1950 |
The Ventrolaminidae are a family of benthic Foraminifera included in the Involutinida, now part of the subclass Spirillinana, class Spirillinata.[1]
Tests of the Ventrolaminidae are lenticular, planispiral, or a low trochospiral with multiple chambers in a rapidly enlarging whorl. The wall is calcareous in two layers. The inner one is microgranular, the outer hyaline glassy).[2]
Two genera are included, Archaeosepta and Protopeneroplis. Loeblich and Tappan included Protopeneroplis (or Ventrolamina, in the Involutinidae in the Treatise Part C, 1964. Archaeosepta was added hence, in 1970.
References
- ↑ Spirillinata, Foraminifera
- ↑ Ventrolaminidae Loeblich & Tappan 1988, GSI e-book.
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